Hi, my name is Dennis Erdelean

I'm from Germany with a solid Computer Science background

Welcome to my little digital universe !
I love everything about web applications.
Designing, developing and securing them.

Welcome to my little digital universe !
I love everything about web applications.
Designing developing and securing them.

My certifications

Complete Web Developer - Zero To Mastery Academy

After my studies I finished the Complete Web Developer Course at Zero To Mastery Academy where I refreshed my skills and learned a lot about Full Stack Development.

Things I learned:

  • JavaScript
  • HTML
  • CSS
  • Responsive Design
  • React.js
  • Node.js
Zero To Mastery WebDev Screenshot

Hack the Box Cyber Apocalypse CTF Participation

In march i attended my first Capture The Flag competition on Hack The Box called Cyber Apocalypse which is the biggest yearly CTF hosted by Hack The Box. Our Team ranked 425th out of 6483 teams. Check out my blog posts on medium.com where I talk about my experience from the CTF and where I walk you through 3 of the web challenges.

Technologies used include:

  • netcat
  • Burp Suite
  • GraphQL
  • PHP
  • Python
Hack The Box CTF Screenshot

CCNA Cisco Certified Network Associate

During my studies I had the chance to take the Cisco CCNA certification which I successfully completed.

CCNA Screenshot

Some things I made

WebShop

This project is a web shop application listing products, categories and a checkout basket. Supports Google Login and Payments are done via Stripe. It is using the latest technologies from the web development industry capable of scaling up the application.
https://webshop27.netlify.app/

Technologies used include:

  • React.js
  • Node.js
  • Redux Saga
  • Sass
  • Firebase
  • Stripe
WebShop Screenshot

CelebDetect

This web application allows you to detect a celebrity. It tells you with a percentage of probalitity which celebrity it detected. Powered by the Clarifai api, a Deep Learning AI engine for image detection.
https://celeb-detect.onrender.com
Github

Technologies used include:

  • JavaScript
  • React.js
  • Node.js
  • Tachyons
CelebDetect Screenshot

Raspberry VPN Access Point (German)

This project was done during my computer science studies for the subject Systemadministration where a classmate and me set up a VPN access point to encrypt all the traffic generated in your home network. A prevention for a Man-in-the-middle attack.
PDF

Technologies used include:

  • OpenVPN
  • RaspbianOS
VPN Access Point Screenshot

Design Pattern JavaScript vs. Python (German)

This project is about a comparison of common design pattern in the popluar programming languages Python and JavaScript.
Github PDF

Pattern:

  • Adapter
  • Singleton
  • Observer
Design Pattern Screenshot

Bachelor Thesis (German)

In this Bachelor Thesis the task was to find the best data synchronization strategies for web applications which are resistent to internet connection outages and can be used offline most of the time. The actual title of the thesis is "Handling large data with single page progressive web apps for cloud computing applications".
Github PDF

Technologies used include:

  • TypeScript
  • JavaScript
  • Node.js
  • dexie.js
  • workbox
  • GraphQL
  • MongoDB
Bachelor Thesis Screenshot

Contact me

If you think I am a good fit don't hesitate to contact me !

Email me